Today as in the past, many students struggle with mathematics and become affected as they continually encounter obstacles to engagement. Mathematics is generally seen as a difficult subject and how this subject is communicated to pupils will influence how pupils learn the subject. Classroom routines play an important role in developing students' mathematical thinking and reasoning. Language makes it possible for the child to objectify and conceptualize his world and himself and to share the responsibility for his destiny. Language is a prime vehicle of expression and exchange of thought in the classroom. Studies over a period 1956-2007 addressed language issues in mathematics learning were reviewed. The studies reviewed stress the necessity of adequate language input in teaching of mathematics.